28843877 has 2 divisors, whose sum is σ = 28843878. Its totient is φ = 28843876.

The previous prime is 28843847. The next prime is 28843891. The reversal of 28843877 is 77834882.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19412836 + 9431041 = 4406^2 + 3071^2 .

It is a cyclic number.

It is not a de Polignac number, because 28843877 - 2⁸ = 28843621 is a prime.

It is a super-2 number, since 2×28843877² = 1663938480782258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28843847) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14421938 + 14421939.

It is an arithmetic number, because the mean of its divisors is an integer number (14421939).

Almost surely, 2^28843877 is an apocalyptic number.

It is an amenable number.

28843877 is a deficient number, since it is larger than the sum of its proper divisors (1).

28843877 is an equidigital number, since it uses as much as digits as its factorization.

28843877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 602112, while the sum is 47.

The square root of 28843877 is about 5370.6495882714. The cubic root of 28843877 is about 306.6793576716.

The spelling of 28843877 in words is "twenty-eight million, eight hundred forty-three thousand, eight hundred seventy-seven".